Monday, December 26, 2022

LEARNING OUTCOMES

   Snowball sampling can be a useful way to conduct research about people with specific traits who might otherwise be difficult to identify Snowball sampling is a widely employed method in qualitative research, specifically when studying hard-to-reach populations.

 

Different types of Sampling 

Sample

            A subset of the population being studied from which data is actually collected. A good sample accurately represents all kinds of elements for members in proportion to their presence in the population.

Sampling techniques

Sampling techniques of the process by which the subset of the population from which you will collect data are chosen. There are two general types of sampling techniques:

       Probability sampling

       Non probability sampling

Figure 1

Figure showing Probability sampling

 

Figure 2

Figure showing Non Probability Sampling

 


Table 1

Table showing the differences of Probability and Non Probability Sampling


 

KEY

PROBABILITY SAMPLING

NON-PROBABILITY SAMPLING

Alternately known as

Random sampling

Non-random sampling

Basis of selection

Randomly

Arbitrarily

Opportunity of selection

Fixed and known

Not specified and unknown

Research

Conclusive

Exploratory

Result

Unbiased

Biased

Method

Objective

Subjective

References

Statistical

Analytical

 

Snowball sampling

Snowball sampling is a non probability sampling technique that is used by researchers to identify potential subject in studies your subject are hard to locate.

       Snowball is a type of non probability sampling technique

       Snowball sampling is choosing the participants to find more participants for making a sample group.

       Mostly researchers used this sampling technique where participants are difficult to locate in a General population

       Snowball sampling technique works as a chaining system

       Participants refer other participants

 There are two important things to remember in snowball sampling

To find one or more research participants for research

To take reference of participant to get more sample size in research

PURPOSIVE SAMPLING

Purposive sampling is also known as Judgmental, subjective or selective sampling, reflects a group of sampling techniques that rely on the judgment of the researcher.

Meaning and Objectives

       Method in which elements are chosen from among the whole population based on the purpose of study

       Researcher with his good decisions and appropriate policy, choose these elements which are meant for fulfilling the research objective.

Reference

1. https://www.scribbr.com/methodology/snowball-sampling/

Wednesday, December 7, 2022

WELCOME STUDENTS

 Dear Students,

Snowball sampling is one of the sampling techniques which is used in research fields.




LEARNING OUTCOMES

     Snowball sampling can be a useful way to conduct research about people with specific traits who might otherwise be difficult to identif...